Free EV Charging Cost Calculator Online

An EV Charging Cost Calculator can be used to give you a rough idea of how much it will cost to charge your electric vehicle. Whether you drive an electric car, SUV, scooter or other electric vehicle knowing how much it will cost you to charge your vehicle can help with managing your budget and understanding cost of owning an electric vehicle compared to a petrol/diesel vehicle.

Charging costs will depend on your vehicle battery size, current battery charge, electricity rate and charging efficiency. Different public charging points may have different prices depending on their speed, location and provider.

This calculator will help you get an idea of how much it will cost you to fully or partially charge your vehicle. Simply input your battery size, charge level and electricity rate to get an idea of your charging costs. This can help you plan your daily commute, monthly budget and longer journeys.

How to Use the EV Charging Cost Calculator

To calculate your EV charging cost:

1. Input your Battery Size

Input your battery size (kWh).

2. Input your Current Charge Level

Input your current battery charge (in %).

3. Input your Target Charge Level

Input how much you would like to charge your battery to (in %).

4. Input your Electricity Rate

Input your electricity rate (in your local currency) per kWh.

5. Input your Charging Efficiency

Input a rough idea of your charging efficiency (in %).

6. Calculate

Click ‘Calculate’ to see how much energy you will need and how much it will cost you to charge your vehicle. You can input your electricity rate at home or the price you are charged at public charging points to see the differences.

EV Charging Cost Formula

The calculator will give you an idea of how much energy you will need to charge your battery and how much it will cost.

Battery Energy Needed

Energy Needed (kWh) = (Battery Size x (Target Charge Level - Current Charge Level)) / 100

Electricity Used from Grid

Electricity Used (kWh) = Energy Needed / Charging Efficiency

Charging Cost

Charging Cost = Electricity Used x Electricity Rate per kWh

Note: Charging Efficiency should be input as a decimal. For example 90% = 0.90.

Example

Your electric car has a 60 kWh battery. It is currently at 20% charge and you wish to charge it to 80%. Your electricity rate is ₹8 per kWh and your charging efficiency is 90%.

Known Variables:

Battery Size = 60 kWh

Current Charge Level = 20%

Target Charge Level = 80%

Electricity Rate = ₹8 per kWh

Charging Efficiency = 90%

1. Calculate your battery energy needed.

(60 x (80 - 20)) / 100 = 36 kWh

2. Calculate your electricity used.

36 ÷ 0.90 = 40 kWh

3. Calculate your charging cost.

40 x ₹8 = ₹320

Your estimated charging cost is ₹320.

You will roughly pay ₹320 to charge your vehicle from 20% to 80%. Actual costs may vary depending on electricity tariffs, charging losses and extra charges.

What Does the Calculator Show?

The calculator will show you 3 key pieces of information:

Energy Needed – The amount of energy your battery will use to charge.

Electricity Used – The amount of electricity you will use from the grid, taking into account charging losses.

Charging Cost – The estimated cost of charging your vehicle.

Generally the larger your battery and higher your electricity rate the more it will cost to charge. If you\'re charging from a lower percentage to a high percentage it will take more energy.

Factors That Influence EV Charging Costs

There are several factors that can affect how much it costs to charge an EV:

Battery Size – Larger batteries will generally need more electricity.

Charge Level – The higher the difference between your current charge and target charge the more energy it will take.

Electricity Tariff – Electricity rates for residential and commercial can vary depending on your location and provider.

Charging Efficiency – The less efficient your charging is the more electricity you will use.

Public Charging Point – Fast charging points can be more expensive than charging at home.

Extra Charges – You may be charged extra for parking, connection, inactivity and session fees.

Temperature and Battery – Depending on the battery and temperature it can affect how much energy is used.

Benefits and Uses

The calculator can help EV owners know how much they will pay to charge their vehicle daily, weekly and monthly. It can help you plan your electricity budget for your household, understand the difference in charging at home and public charging points and get an idea on how much it will cost for a road trip.

Drivers can use this to understand the difference in electricity tariffs, understand how much money they could save by switching to an electric vehicle from a petrol or diesel vehicle. Businesses with electric delivery vehicles or company cars can use these calculations to plan how much they will spend charging their fleet.

Accuracy, Assumptions and Limitations

This calculator will give you an estimated cost for charging your vehicle based on your battery size, charge levels, electricity rate and charging efficiency. It will assume you have a consistent charging efficiency.

Your actual costs may vary depending on the electricity tariffs, battery temperature, charger performance, battery degradation and extra charges from the charging point. Some charging points charge based on the time, session etc. rather than just electricity.

The calculation may not include any taxes or fixed charges. To ensure you have an accurate budget use the latest electricity tariff or current prices from the charging provider.

FAQs

1. What is an EV Charging Cost Calculator?

An online tool that helps you work out how much it will cost to charge your electric vehicle based on your battery size, charge level, electricity rate and charging efficiency.

2. How much does it cost to charge an electric car?

The cost will depend on your battery size, electricity rate and how much energy you need. Use the calculator to find out how much it will cost.

3. Is it cheaper to charge my EV at home?

It is often cheaper to charge your EV at home. However this will depend on your electricity tariff and the pricing of the public charging point.

4. What is kWh?

Kilowatt hour (kWh) is a unit of energy. This shows how much electricity you are using to charge your vehicle and how much energy is held in the EV battery.

5. Does it account for charging losses?

Yes! If you put in a charging efficiency less than 100% the calculator will work out how much extra electricity you will need to charge your battery.

6. Can I work out how much it will cost to partially charge?

Yes! Simply enter how much your battery is currently charged and how much you would like to charge it up to.

7. Can I use this calculator in any country?

Yes! This calculator can be used worldwide. Just enter your local electricity price and currency. Make sure to keep the price per kWh the same to get the most accurate estimate.